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           COLLOQUIUM OF THE COMPUTATIONAL MATERIALS SCIENCE CENTER
                             College of Science
                      (CDS Department CSI 898-Sec 001)
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        Analysis of Rotor Wake Aerodynamics During Maneuvering Flight
                  Using a Free-Vortex Wake Methodology.

                          Shreyas Ananthan
  Computational Materials Science Center, George Mason University and 
          National Institute of Sctandards and Technology

The flow field associated with a helicopter rotor is considerably
complex even for steady state flight conditions. Existing computational
techniques lack the fundamental capability to simulate the unsteady wake
dynamics under maneuvering flight conditions. Accurate prediction of the
wake dynamics under all practical flight conditions is crucial for
designing better and efficient helicopters. A free-vortex wake
methodology capable of predicting the wake dynamics under maneuvering
flight conditions has been developed. The algorithm was designed to be
computationally cost-efficient while capturing the essential flow
physics seen during maneuvering flight. The numerical technique was
comprehensively validated against existing experimental measurements.
The code was then used to predict the aerodynamics and aeroacoustics of
various standard military maneuvers.
                        
                          October 16, 4:30 pm
                   Room 301, Research I, Fairfax Campus

Refreshments will be served at 4:15 PM.
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Find the schedule at http://www.cmasc.gmu.edu/seminar/schedule.html
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